Stupid question, but is there any "concrete" evidence of that pan actually helping with drag numbers or rear bumper "fluttering" in the wind? Last year for this reason, I had a guy purposely follow me down the interstate at 80mph...BRIEFLY went to 100 and he said my bumper was not fluttering at all
(I too, have an axle-back exhaust.). Not saying it isn't worth it, just wondering if there is actual "proof" out there that it REALLY makes a difference.
. Maybe it does for those tracking at speeds higher than 100mph, but not so much for everyday driving with occasional pulls.
